Condensed Matter > Mesoscale and Nanoscale Physics

Abstract: Recent experimental studies have found that magnetic impurities deposited on
superconducting monolayer NbSe$_2$ generate coupled Yu-Shiba-Rusinov bound
states. Here we consider ferromagnetic chains of impurities which induce a
Yu-Shiba-Rusinov band and harbor Majorana bound states at the chain edges. We
show that these topological phases are stabilized by strong Ising spin-orbit
coupling in the monolayer and examine the conditions under which Majorana
phases appear as a function of distance between impurities, impurity spin
projection, orientation of chains on the surface of the monolayer, and strength
of magnetic exchange energy between impurity and superconductor.